We have the following grammar with the start symbol : -> + | -> | / < factor> | -> 01213141516171819 1. Show a leftmost derivation for the expression "6*4/2-0 +9"; show every step. 2. Show a rightmost derivation for the above expression; show every step. 3. Show the parse trees for the above expression's leftmost derivation and rightmost derivation. 4. Show a new grammar that removes the ambiguity and makes "+" and "-" left-associative. Show the parse tree for "6 * 4 / 2-0 +9" in your new grammar. Provide proper reasoning as to why this is the only parse tree possible for your grammar (making it unambiguous). 5. Show a new grammar that removes the ambiguity and makes "+" and "-" right-associative. Show the parse tree for "6 * 4 / 2 - 0 + 9" in your new grammar. Provide proper reasoning as to why this is the only parse tree possible for your grammar (making it unambiguous).
We have the following grammar with the start symbol : -> + | -> | / < factor> | -> 01213141516171819 1. Show a leftmost derivation for the expression "6*4/2-0 +9"; show every step. 2. Show a rightmost derivation for the above expression; show every step. 3. Show the parse trees for the above expression's leftmost derivation and rightmost derivation. 4. Show a new grammar that removes the ambiguity and makes "+" and "-" left-associative. Show the parse tree for "6 * 4 / 2-0 +9" in your new grammar. Provide proper reasoning as to why this is the only parse tree possible for your grammar (making it unambiguous). 5. Show a new grammar that removes the ambiguity and makes "+" and "-" right-associative. Show the parse tree for "6 * 4 / 2 - 0 + 9" in your new grammar. Provide proper reasoning as to why this is the only parse tree possible for your grammar (making it unambiguous).
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
asap please number 4 and 5
Transcribed Image Text:We have the following grammar with the start symbol <expr>:
<expr>
<factor> + <factor> | <factor> - <factor> <expr>
<factor> -> <factor> * <factor> | <factor> / < factor> | <expr> | <digit>
<digit> ->0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
1. Show a leftmost derivation for the expression "6*4 / 2-0 +9"; show every step.
2. Show a rightmost derivation for the above expression; show every step.
3. Show the parse trees for the above expression's leftmost derivation and rightmost derivation.
4. Show a new grammar that removes the ambiguity and makes "+" and "-" left-associative.
Show the parse tree for "6 * 4 / 2-0 + 9" in your new grammar. Provide proper reasoning
as to why this is the only parse tree possible for your grammar (making it unambiguous).
5. Show a new grammar that removes the ambiguity and makes "+" and "-"right-associative.
Show the parse tree for "6*4 / 2-0 + 9" in your new grammar. Provide proper reasoning
as to why this is the only parse tree possible for your grammar (making it unambiguous).
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
Follow-up Questions
Read through expert solutions to related follow-up questions below.
Follow-up Question
number 1,2,3 please
Transcribed Image Text:We have the following grammar with the start symbol <expr>:
<expr>
<factor> + <factor> | <factor> - <factor> <expr>
<factor> -> <factor> * <factor> | <factor> / < factor> | <expr> | <digit>
<digit> ->0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
1. Show a leftmost derivation for the expression "6*4 / 2-0 +9"; show every step.
2. Show a rightmost derivation for the above expression; show every step.
3. Show the parse trees for the above expression's leftmost derivation and rightmost derivation.
4. Show a new grammar that removes the ambiguity and makes "+" and "-" left-associative.
Show the parse tree for "6 * 4 / 2-0 + 9" in your new grammar. Provide proper reasoning
as to why this is the only parse tree possible for your grammar (making it unambiguous).
5. Show a new grammar that removes the ambiguity and makes "+" and "-"right-associative.
Show the parse tree for "6*4 / 2-0 + 9" in your new grammar. Provide proper reasoning
as to why this is the only parse tree possible for your grammar (making it unambiguous).
Solution
by Bartleby ExpertKnowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Recommended textbooks for you
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education